What is transpiration? It is the process of : A. maintaining a constant internal environment. B. losing water vapor from the leaves of plants. C.co-ordination and control of the body by hormones. D. preparing starch by plant leaf using carbon dioxide.
Verified answer
✏Losing water vapor from the leaves of plants.
The evaporation of water from the leaves of a plant is called transpiration. The continuous evaporation from the leaves, creates a space and then the water again fills that place, again transpiration occurs. Hence, it creates a kind of suction which pulls up the water through the xylem vessels.
Actually, as we know that roots absorbs water from soil, out of all only 2% of water is used by plants in different kinds of metabolic activities. Rest of the water is lost by the plant from the living aerial parts of the plant in the form of water vapours.
The loss of water occurs in the form of water vapours through many aerial parts like the stomata, cuticle, lenticels etc. Hence, on the basis of aerial parts, transpiration are of three types:
The various importance of transpiration are
⚠️But most of the water absorbed by plants is lost by the plants by transpiration without any purpose. The energy spent during transpiration is wasted. Hence,
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